> > > ...
> > > +        (modify-phases %standard-phases
> > > +          (add-before 'configure 'pre-configure
> > > +               (lambda* (#:key outputs #:allow-other-keys)
> > > +                 (let ((out (assoc-ref outputs "out")))
> > > +                   (substitute* (find-files "." "^Makefile.in$")
> > > +                     (("guilemoduledir =.*guile/site" all)
> > > +                     (string-append all "/2.0")))
> > > +                  #t))))))
> > > ...  

> > Just curious: why do you (string-append all "/2.0")? Is this a guix guideline
> > maybe?

> > 	IMO, G-wrap, Guile-Cairo and Guile-Gnome should all be installed in the
> > 	directory returned by (%global-site-dir)

> `guilemoduledir =.*guile/site' is saved in the variable `all' and then
> used in the second half of the substitute*.  I have a similar one I
> wrote for aria2 in bittorrent.scm

ok, but why "/2.0" is appended to it?